Improvement in machines for dressing  warp-threads



dilated gieten f @tient @Wina WILLIAM. H. BOYDEN, vOF ROCKLAND, RHODE ISLAND.

Letras Parent No. 92,784, ma July 2o, i869.

IMPRQVEMENT n v MAcgm-Es ron DRESSING Winer-THREADS.

The Schedule referred to in these Letters Patent and maldngvparb o! the same.

Figure 3 is, a transverse section through line z z, ii 2.

gFigure 4 is a sectional view, showing. the fastening of bars I.

. In this invention, the racks and bars are constructed and hung dii'erently from anything of the kind in use heretofore, in order that they may be more readily and conveniently cleaned, when necessary; and a motion is given to the racks, bars, and rods, from mechanism entirely independent of that which moves the thread, in order that, when the thread stops, the other parts referred to may keep in motion, and thereby the sizingof the thread may be prevented from adhering to them.

` In the drawings, fig. l represents the middle 'and iight end of a dresser, the threads being shown in red lines.

A is a shaft, receiving motion from the fan-shaft, entirely independent of the motive-power which op'- erates the thread, and communicating suoli motion,

ythrough a belt and pulley, B, to a shaft, C, from which it is again communicated, by gearing D, to a shaft, E.

. To the end of the latter is fixed a crank, eccentric, or other device, c, for converting the circular inotion into a vibrating motion.

A. pitman, F, then communicates such motion to a swinging frame, G, which supports the racks H and bars'I, being itself pivoted on trunnions g g, at or near its centre, so that when the shaft AA is putin motion, the frame G is thereby rocked, and the racks and bars are caused to vibrate back and forth in contact with the thread, and lengthwise of the same,

It is evident, that it' the motion of the thread, or that of all' the other machinery cease, thev racks and bars may be kept in motion, and the sizing of the thread b'e prevented from adhering to them.

By connecting the rods J to them, by means of cords jj, and applying weights orsprings K and .cords k on the other side, the. same backward-and-forward motion maybe communicated to the rods, and for the same purpose.

The racks and bars are attached to the frame G independently of each other, the frame of the bars Figure 2 is a transverse section through line y y of fig. 1.

being attached directly to the side-pieces of frame G, by means of a bolt, L, and clamping-screw nutl, so. that by loosening the nut, the bar-frame, with the bars, may be turned over on -its side, for the purpose of being cleaned more conveniently.

The rack H is hung Yon trunnions h h, in a bent supporting-bar, M, which rests, at its centre, on a block, M1, which slides. back' and forth, toward and from the bars I, upon an arm, M2, and can be latched in place, asseeu in iig. 3, by means of a hasp or catch, m. A

Two arms 'm' m', in addition to'the central arm M2,

are provided, to support the weight of therack, and steady it, when it is slid toward the centre of the machine. l

Whenever it is desired to clean the rack, the hasp on is to be unlatched, and the supporting-bar M slid to the left, as shown in Iig. 3. 'Ihis will separate the rack from the bars I, and allow -the former to be turned down on its side, so Athat it can readily and easily be cleaned.

The construction of the rack is, somewhat di'erent from those heretofore in use, the top piece 'i being re'- movable, so that the threads can all be lifted out withoutthe necessity ot' cutting or breaking them.

The top piece is simply a dat plate of metal, dou

bled, along its centre, over the.upper ends of' the inclined slats, so as to hold them in positionfand itself confined in place by means of screws o, or other convenient fastening. .y

Both the racks and bars are supported i'n sliding pieces N, working in grooves in the frame G, so as to be adjustable toward or from the trunnions g g, in order t increase or diminish, at pleasure, -the distance between the upper'and lower ones.

Having thus described my invention,

WhatxI claim as new, and desire to secure by Letters Patent, isl. The racks H, bars I, and rod J or any of them, when receiving a reciprocating movement from a power independent ot' that which' works the thread, substantially as and for the purpose specified.

2. The combination of the rocking frame G with the racks H, bars I, rods J, cords j k, and springs or weights K, substantially as and for the purpose .set forth..

3. The racks H and bars I, hung inthe manner described, so that they can be slid apart, to allow them, or. either of them, to be turned down on their side, substantially as described, and for the purposes specified.

4. The racks H, constructed with a removable top piece, t', substantially as and for the purposes set forth.

WILLIAM H."BOYDEN.

Witnesses:

J AcoB W. Wannee, CHARLES G. HILL. 

